AD1674BD 12-Bit SAR ADC Equivalent & Substitute Parts

Part Overview

The AD1674BD is a 12-bit successive approximation register (SAR) analog-to-digital converter manufactured by Analog Devices Inc., designed for single-ended input data acquisition applications. This device operates at a 100 kHz sampling rate and features parallel data interface output, making it suitable for industrial measurement and control systems requiring moderate-speed analog conversion.

The AD1674BD is classified as an active product with full RoHS3 compliance and REACH unaffected status. Substitute parts are identified based on matching electrical specifications, mechanical packaging, and operational parameters to ensure direct circuit compatibility without redesign.

Substiute Parts

AD1674BD

Analog Devices Inc.In Stock: 1850AD1674BD Datasheet

Current PartRFQ

AD1674AD

Analog Devices Inc.In Stock: 1578AD1674AD Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AD1674BD are identified based on the following critical parameters that determine functional and mechanical compatibility:

• 12-bit resolution matching
• 100 kHz sampling rate equivalence
• Single-ended input configuration
• Parallel data interface architecture
• SAR conversion methodology
• Dual reference capability (external and internal)
• ±11.4V ~ 16.5V analog supply voltage range
• 5V digital supply voltage
• 28-CDIP through-hole package format
• Operating temperature range of -40°C ~ 85°C

The AD1674AD meets all specified parameters and is classified as a parametric equivalent. Both devices share identical electrical characteristics, pin configuration, and package specifications, enabling direct substitution in existing circuit designs.

Parameter Comparison

Engineering Selection Recommendations

Both the AD1674BD and AD1674AD are active products manufactured by Analog Devices Inc. with identical compliance certifications. The AD1674AD is suitable as a direct substitute based on:

• Matching ROHS3 compliance status
• Identical REACH unaffected classification
• Active product status for both devices
• Equivalent MSL rating of 1 (Unlimited)
• Identical ECCN and HTSUS classifications

Selection between these parts may be based on inventory availability and lead time requirements, as both devices provide equivalent electrical and mechanical performance in 28-CDIP through-hole applications.

Frequently Asked Questions (FAQ)

Q: Can the AD1674AD replace the AD1674BD in existing designs?

A: Yes. The AD1674AD is a parametric equivalent with identical resolution, sampling rate, supply voltage requirements, package format, and pin configuration. No circuit modifications are required for substitution.

Q: Are the pin configurations identical between AD1674BD and AD1674AD?

A: Yes. Both devices use the 28-CDIP package with identical pin assignments, enabling direct socket replacement.

Q: What is the difference between the AD1674BD and AD1674AD?

A: Both parts are manufactured by Analog Devices Inc. and share identical electrical specifications and packaging. Differences, if any, relate to manufacturing date codes or internal process variations that do not affect functional performance or compatibility.

Q: Are both parts RoHS compliant?

A: Yes. Both the AD1674BD and AD1674AD are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: Can these parts be used in high-temperature applications?

A: Both devices operate across the -40°C ~ 85°C temperature range. Applications requiring operation beyond this range require alternative components with extended temperature specifications.

Q: What supply voltages are required for operation?

A: The analog supply requires ±11.4V ~ 16.5V, and the digital supply requires 5V. Both the AD1674BD and AD1674AD have identical voltage requirements.

Q: Is the 28-CDIP package suitable for surface-mount applications?

A: No. The 28-CDIP package is a through-hole format. Surface-mount alternatives would require different package types not covered by these equivalent parts.